Dish-washing machine.



JUL SLEEPER.

DISH WASHING MACHINE.

APPLICATION FILED DEO.10,1913.

LMSMM. Patented Jan.5,1915.

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Specification of Letters Patent.

Patented Jan. 5, 1915.

Application liledllooember 10, 1913. Serial No. 805,688.

concern:

Be it known t t I, JosnrH J. SLEEPER, a citizen of the United States,residing at Moores, in the county of Delaware and State of Pennsylvania,have inventedcertam new and useful Improvements in pish washmg Machines,of which the following is a specification.

My invention relates to 1m rovementsm dish washing machines, an ob ectof the 1nvention being to provide an improved construction of agitatormovable in a well 1n the base of a dish containing receptacle, andadapted when moved in the well to throw the water in various directionsto thoroughlwash the dishes. 3

A i irther object is to prov1de a Washmg machine and improvedconstructlon of agitator with means for alternately moving the same indifierent directions and imparting to the water difierent movementsduring the operation of ,the agitator to thoroughly cleanse the dishes;

A further object is-to EIOYldG an mproved dish washing machine. aving anv mproved arrangement of rotary agitators in a confined receptacle, andhaving improved means for permitting a free communication with theoutside air so as to insure normal conditions within the receptacle andprevent partial vacuum or pressure which would interfere with theperfect washing of the dishes.

With these and other objects in view, the invention consists in certainnovel features of construction and combinations and arrangements ofparts as will be more fully hereinafter described and pointed out in theclaims.

In the accompanying drawings: Figure 1 is a view in vertical sectionillustrating my improvements. Fig. 2 is a View in elevation at rightangles to Fig. 1 with the upper portion of the receptacle shown insection.

Fig. 3 is a view in horizontal section on the line 33 of Fig. 1. Fig. 4is a top plan view. Fig; 5 is a fragmentary view in elevation showing amodified arrangement of agitators illustrating the same in connectionwith the receptacle well, a portion of the latter being shown insection, and Fig. 6 is an enlarged view in longitudinal section on theline 6-6 of Fig. 5.

1 re resents a receptacle having a well 2 its ottom, said well andreceptacleboth preferably of circular shape in horizontal section withthe outer walls of the receptacle and well concentric, but the latterappreciably smaller in diameter than the receptacle proper so that acircular ledge 3 is formed to support wire baskets to contain the dishesto be washed. These Wire baskets are preferably composed of ordlnaryWire covered with fiber, cork, or any other suitable material asindicated at 5 to prevent chipping the dishes and cushioning the contactof the same with the baskets. I preferably provide feet 6 to support themachine, and in the bottom of the well 2, an outlet 7 is formed having adischarge pipe 8 extending at an angle therefrom and normally closed bya stopper 9.

' The upper end of the receptacle 1 is closed by a removable cover 10,the latter consisting of three parts 11, 12, and 13. The intermediateportion 12 is provided with overlapping flanges 14: which are secured bybolts 15 and Wing nuts 16 to the sides of the receptacle 1. The sections11 and 13 are connected by hinges 17 with the intermediate section 10,so that they may be readily moved up and down to permit access to thereceptacle.

The intermediate section 12 of the cover 1 has a central bearing 18 fora vertical tubular shaft 19, and the latter having a beveled pinion 20on its upper end meshing with a beveled ClIlXG gear 21. The gear 21 issupported upon ashaft 22 carried by brackets 23 on the intermediatesection 12, and back of the gear 21, I preferably locate ball bearings24 to sustain the thrust and hold the gear up to its meshing positionwith pinion 20. An operating lever 25 is secured to turn with the gear21, and is adapted to be oscillated so as to impart a rotary movement tothe shaft 19, first in one direction, and then in the other as will morefully hereinafter appear.

TheloWer closed end 26 of shaft 18 has a thrust bearing 27 on a pin 28fixed in the bottom of the well 2, and to the shaft 19 near its bottom,horizontal bars 29 are rigs idly secured. On these bars 29, my im,proved agitators 30 are secured. l Vhile the invention is of course notlimited to any particular manner of connecting the agitatorswith theshaft, I preferably provide bolts 31 as shown, nor is the inventionlimited to any particular number of these agi- 4 adapted tators, as forexample, in Fig. 3 I have illustrated two agitators, and in Fig. 5,four.

These agitators 30 are preferably formed of sheet metal and havedeflecting surfaces 32 and, 33 at an angle to each other, and atdifferent angles relative to the bottom of the well. These surfaces 32and 33, as well as the bottom 34 and sides 35 may be formed from asingle sheet metal blank.

In Fig. 5, I have illustrated two pairs of agitators, and it will beobserved that the outside agitators have their outer walls 36 at anangle to the side walls of the well, and it is to be understood that theabove angles of the different walls of the agitators result in impartingdifferent movements to the water in the well as will be explained.

It is to be understood that the well will contain water up to a pointapproximating 2 its upper end, and this is allthe Water there will be inthe receptacle. In the bottom of a the well or rather at a pointslightly re-.

moved from the bottom, a wire screen 37, is located. This screen has twoimportant functions, first, it permits solid particles to pass throughthe screen and retards their upward movement, and secondly, the screenserves to retard the rotary movement of the water which augments theangular throw of the water by the agitators.

As above stated, the shaft 18 is tubular or hollow, and this shaft.communicates at its upper end with the outside air and throu hout itslength in the receptacle is provi ed with perforations 38, so that theair inside the receptacle has free communication with the outside air.This prevents either pressure or partial vacuum and prevents anundesirable accumulation of soapy bubbles 40 around the dishes.

Assuming the baskets 4: to be full of dishes to be washed, and well 2full of water which I may be impregnated with soap or any cleaningcomposition, when the lever 25 is oscillated, shaft 18 will be'revolvedin one direction, and then in the opposite direction. During the firstmovement, the inclined surface 32 Will throw the water in one direction,and on the reverse movement, the in- 5o gclined surface 33 will impart adifferent f movement to the water. The inclined outer jw'alls 36 willalso give the Water an upward "-1 f swi'rling movement, and thesecombined jmovements imparted to the water will in- 5 5 'su re 'a perfectcleansing of the dishes, as all parts-tr the dishes will be subjected tocontact with the water which will be thrown with considerable force. Inthe normal 0p- ,eiation of the device, these varying move u ments givento the water may of course be -altered by changing the angles of thedifierentj surfaces, but I believe the particular -"shape illustrated isa preferable one because of the many different movements attained.

" After the dishes are washed, the dirty Water may be allowed to drain0E, and clear hot water supplied to the well, and the dishes thoroughlyrinsedand allowed to dry.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. In a washing machine, the combination with a receptacle, of anagitator movable in the receptacle adjacent the bottom thereof and in apath concentric with the center of the rece tacle, said agitator havingdeflecting suraces at its respective ends at an angle to each other andat different angles relative to the bottom of the receptacle, and meansfor moving the agitator in opposite 0 directions, substantiall asdescribed.

2. In a washing machine, the combination with a receptacle, a verticalshaft in the receptacle, and agitators connected to and movable by theshaft in a circular path ad- 35 jacent the bottom of the receptacle,said agitators'having at their respective ends water deflecting surfacesat'an angle to each other, and means for imparting a rotary movement tothe shaft first in one direction and then in the other, substantially asdescribed.

3. In a washing machine, the combination with a receptacle havin aconcentric .well in its bottom of appreclably 'less diameter than thereceptacle, 9. screen in the well spaced from the bottom thereof, arotary shaft positioned vertically in the well, agitators at oppositesides of the shaft and secured to turn therewith, said agitators hav ingwater deflecting surfaces at both ends and at both sides at variousangles, and means on the upper end of the receptacle for imparting arotary movement to the shaft first in one direction and then in theother, substantially as described.

4. In a washing machine, the combination with a receptacle having aconcentric well in its bottom of appreciably less diameter than thereceptacle, a screen in the well spaced from the bottom thereof, arotary shaft positioned vertically in the well, agitators at oppositesides of the shaft and se cured to turn therewith, said agitators havinga plurality of water deflecting surfaces at various angles, said shafttubular in form 1 5 communicating'at its upper end with the outside airand perforated throughout its length, and means for turning the shaft inopposite directions, substantially as described.

5. In a washing machine, the combination with a receptacle havin aconcentric well in its bottom of appreciab y less diameter than thereceptacle and forming at its juncture with the receptacle, a supportfor a dish 125 holding tray, a vertical drive shaft in the receptacleand well, a screen in the well above the bottom thereof, agitatorssecured to opposite sides of the vertical shaft and having waterdeflecting surfaces at their 0 ends at different angles relative to eachother and to the bottom of the well, and having deflecting surfaces attheir sides at an angle to each other, and means for imparting rotarymotion to the shaft, first in one direction and then in the other,substantially as described.

M. E. DrrTos, CHAS. E. PoTTs.

